Hello Mr. Shaik,
thank you for your message.
I think the exception you are getting is caused by a slightly wrong body you use for your request.
The correct body should look like this:
{
"requestId" : "1",
"inputArguments": [
{
"value": {
"idShort": "finput",
"valueType": "string",
"value": "MyInput",
"modelType": {
"name": "Property"
}
}
}
],
"timeout" : 5000
}
Some of the content of “value” needs to be slightly different to what you had.
I hope this helps.
Kind regards
Maximilian Conradi
--
Maximilian Conradi
Software Architect
Dept. Virtual Engineering
Fraunhofer IESE
Fraunhofer-Platz 1 | 67663 Kaiserslautern
+49 631 6800 2278
maximilian.conradi@xxxxxxxxxxxxxxxxxx
www.iese.fraunhofer.de
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Von: basyx-dev <basyx-dev-bounces@xxxxxxxxxxx>
Im Auftrag von Nayabrasul Shaik
Von: basyx-dev <basyx-dev-bounces@xxxxxxxxxxx>
Im Auftrag von Nayabrasul Shaik
Gesendet: Dienstag, 16. November 2021 16:28
An: basyx-dev@xxxxxxxxxxx
Betreff: [basyx-dev] Query on invoking Operation with REST API
Dear Basyx Developers Community,
I am Nayabrasul Shaik, working for Service Robotics Research Center at the Ulm University of Applied Sciences, Germany.
Our group is currently working on providing AAS interface to the Service Robots. We choose Basyx implementation for this purpose and appreciate your effort.
I have a query on invoking the operation using the REST interface. I am using the
Cloud Edge Deployment example for this purpose.
I added an Operation(which takes a string as input and returns a string) to Submodel and tried to invoke it using Postman rest client.
The response from REST api is unsuccessful and I see the following error in Basyx.
Error from Basyx:
-------------------------
15:56:39.870 [http-nio-8082-exec-5] ERROR org.eclipse.basyx.vab.coder.json.provider.JSONProvider - Unknown Exception in JSONProvider
org.eclipse.basyx.aas.metamodel.exception.MetamodelConstructionException:
Could not construct meta model element org.eclipse.basyx.submodel.metamodel.map.submodelelement.operation.OperationVariable. Passed argument was {modelType={name=OperationVariable}, value={valueId=null, kind=Template, valueType=string, modelType={name=Property},
value=foutput}}
at org.eclipse.basyx.submodel.metamodel.map.submodelelement.operation.OperationVariable.createAsFacade(OperationVariable.java:69)
Below snippet shows the operation added to submodel:
-----------------------------------------------------------------------------
complex.setIdShort("complex");
Property inProp1 = new Property("finput");
inProp1.setModelingKind(ModelingKind.TEMPLATE);
inProp1.setValueType(ValueType.String);
Property outProp = new Property("foutput");
outProp.setModelingKind(ModelingKind.TEMPLATE);
outProp.setValueType(ValueType.String);
complex.setInputVariables(Arrays.asList(new OperationVariable(inProp1)));
complex.setOutputVariables(Collections.singleton(new OperationVariable(outProp)));
edgeSm.addSubmodelElement(complex);
Following is the REST API used and JSON input used for invoking the operation:
-------------------------------------------------------------------------------------------------------------
POST http://localhost:8082/oven/curr_temp/submodel/submodelElements/complex/invoke
{
"requestId" : "1",
"inputArguments": [
{
"value": {
"idShort": "finput",
"category": "string",
"kind": "Template",
"value": "MyInput",
"mimeType": "string"
}
}
],
"timeout" : 5000
}
I appreciate any cues in getting the successful response for REST API invocation of operation.
Thanks in advance.
--
Mit freundlichen Grüßen / Kind regards
Nayabrasul Shaik
Research associate
Service Robotics Research Center
University of Applied Sciences Ulm
Prittwitzstrasse 10
89075 Ulm
Germany
Telefon: +49 (0731) 50-28148
E-Mail: nayabrasul.shaik@xxxxxx
